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Styling: added convenience methods to invoke StyleableUI interface methods

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~~~java
JButton button = new JButton();
int arc = FlatLaf.getStyleableValue( button, "arc" );
Color borderColor = FlatLaf.getStyleableValue( button, "borderColor" );
~~~
This commit is contained in:
Karl Tauber
2022-09-14 10:51:11 +02:00
parent 0e523f1193
commit 86a4f306c6
1 changed files with 61 additions and 0 deletions
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61
flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java
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@@ -30,6 +30,9 @@ import java.awt.image.ImageProducer;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.ArrayList;
@@ -63,6 +66,7 @@ import javax.swing.UIDefaults.LazyValue;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.ColorUIResource;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.FontUIResource;
import javax.swing.plaf.IconUIResource;
import javax.swing.plaf.UIResource;
@@ -73,6 +77,7 @@ import com.formdev.flatlaf.ui.FlatNativeWindowBorder;
import com.formdev.flatlaf.ui.FlatPopupFactory;
import com.formdev.flatlaf.ui.FlatRootPaneUI;
import com.formdev.flatlaf.ui.FlatUIUtils;
import com.formdev.flatlaf.ui.FlatStylingSupport.StyleableUI;
import com.formdev.flatlaf.util.GrayFilter;
import com.formdev.flatlaf.util.LoggingFacade;
import com.formdev.flatlaf.util.MultiResolutionImageSupport;
@@ -1230,6 +1235,62 @@ public abstract class FlatLaf
*/
public static final Object NULL_VALUE = new Object();
/**
* Returns information about styleable values of a component.
* <p>
* This is equivalent to: {@code ((StyleableUI)c.getUI()).getStyleableInfos(c)}
*
* @since 2.5
*/
public static Map<String, Class<?>> getStyleableInfos( JComponent c ) {
StyleableUI ui = getStyleableUI( c );
return (ui != null) ? ui.getStyleableInfos( c ) : null;
}
/**
* Returns the (styled) value for the given key from the given component.
* <p>
* This is equivalent to: {@code ((StyleableUI)c.getUI()).getStyleableValue(c, key)}
*
* @since 2.5
*/
@SuppressWarnings( "unchecked" )
public static <T> T getStyleableValue( JComponent c, String key ) {
StyleableUI ui = getStyleableUI( c );
return (ui != null) ? (T) ui.getStyleableValue( c, key ) : null;
}
private static StyleableUI getStyleableUI( JComponent c ) {
if( !getUIMethodInitialized ) {
getUIMethodInitialized = true;
if( SystemInfo.isJava_9_orLater ) {
try {
// JComponent.getUI() is available since Java 9
getUIMethod = MethodHandles.lookup().findVirtual( JComponent.class, "getUI",
MethodType.methodType( ComponentUI.class ) );
} catch( Exception ex ) {
// ignore
}
}
}
try {
Object ui;
if( getUIMethod != null )
ui = getUIMethod.invoke( c );
else
ui = c.getClass().getMethod( "getUI" ).invoke( c );
return (ui instanceof StyleableUI) ? (StyleableUI) ui : null;
} catch( Throwable ex ) {
// ignore
return null;
}
}
private static boolean getUIMethodInitialized;
private static MethodHandle getUIMethod;
//---- class FlatUIDefaults -----------------------------------------------
private class FlatUIDefaults